81 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			81 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
{ config, lib, pkgs, ... }:
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with lib;
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let
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  cfg = config.boot.loader.systemd-boot;
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  efi = config.boot.loader.efi;
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  gummibootBuilder = pkgs.substituteAll {
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    src = ./systemd-boot-builder.py;
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    isExecutable = true;
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    inherit (pkgs) python3;
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    systemd = config.systemd.package;
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    nix = config.nix.package.out;
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    timeout = if config.boot.loader.timeout != null then config.boot.loader.timeout else "";
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    editor = if cfg.editor then "True" else "False";
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    inherit (efi) efiSysMountPoint canTouchEfiVariables;
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  };
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in {
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  imports =
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    [ (mkRenamedOptionModule [ "boot" "loader" "gummiboot" "enable" ] [ "boot" "loader" "systemd-boot" "enable" ])
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    ];
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  options.boot.loader.systemd-boot = {
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    enable = mkOption {
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      default = false;
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      type = types.bool;
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      description = "Whether to enable the systemd-boot (formerly gummiboot) EFI boot manager";
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    };
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    editor = mkOption {
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      default = true;
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      type = types.bool;
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      description = ''
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        Whether to allow editing the kernel command-line before
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        boot. It is recommended to set this to false, as it allows
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        gaining root access by passing init=/bin/sh as a kernel
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        parameter. However, it is enabled by default for backwards
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        compatibility.
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      '';
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    };
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  };
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  config = mkIf cfg.enable {
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    assertions = [
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      {
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        assertion = (config.boot.kernelPackages.kernel.features or { efiBootStub = true; }) ? efiBootStub;
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        message = "This kernel does not support the EFI boot stub";
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      }
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    ];
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    boot.loader.grub.enable = mkDefault false;
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    boot.loader.supportsInitrdSecrets = true;
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    system = {
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      build.installBootLoader = gummibootBuilder;
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      boot.loader.id = "systemd-boot";
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      requiredKernelConfig = with config.lib.kernelConfig; [
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        (isYes "EFI_STUB")
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      ];
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    };
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  };
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}
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